Diseases of the skin : an outline of the principles and practice of dermatology / by Malcolm Morris.

  • Morris, Malcolm Alexander, Sir, 1849-1924.
Date:
1899
Catalogue details

Licence: Public Domain Mark

Credit: Diseases of the skin : an outline of the principles and practice of dermatology / by Malcolm Morris. Source: Wellcome Collection.

Provider: This material has been provided by King’s College London. The original may be consulted at King’s College London.

    125/658 (page 79)
    Several varieties of urticaria have been described according to the size, configuration, and structural peculiarities of the characteristic lesions. Thus the wheals naay be small and on their subsidence leave papules. Hence the name urticaria j)apulosa. It is to Colcott Fox that we owe the proof of the urticarial nature of these lesions and their identification with the lichen urticatus of Bateman and the lichen strophulus of Bayer and Biett.* Urticaria papulosa is chiefly met with in children. The lesions are, as a rule, no larger than a lentil, and on the top of each is a tiny red point or inflammatory papule, which is usually covered with a darkish scab, the result of scratching. If the red papule is not at first visible it can always be brought into view by pressure, when the colour facies from the circumference of the papule, leaving a minute red spot in the middle. The erup- tion afl'ects all parts of the body, but shows a certain preference for the trunk. Fresh crops of little papules come out at night and cause such intense itching that sleep is impossible. The disease may last for sevei’al yeai’s, becoming milder or practically remitting in winter and returning with the warmer weather, or vice versd. Urticaria papulosa may be looked upon as a connecting link between urticaria and ]U’urigo. When ordinary urticaria attacks parts like the eyelids, scrotum, etc., where there is much loose connective tissue which offers comparatively little resistance to the diffusion of the infiltration, it is termed urticaria oedematosa. The oedema as a rule comes on suddenly, to the great alarm of the patient, especially when mucous membranes such as those of the tongue and throat are involved ; but it seldom lasts longer than twenty-four hours. Alcoholism * Colcott Fox: “Urticaria of Infancy and Childhood,” Journ. of Dermatology, Uiiy, mo. . '